102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
/* This file is part of Clementine.
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Copyright 2011, David Sansome <me@davidsansome.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "closure.h"
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#include "core/logging.h"
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#include "core/timeconstants.h"
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namespace _detail {
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Closure::Closure(QObject* sender,
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const char* signal,
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QObject* receiver,
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const char* slot,
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const ClosureArgumentWrapper* val0,
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const ClosureArgumentWrapper* val1,
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const ClosureArgumentWrapper* val2,
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const ClosureArgumentWrapper* val3)
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: QObject(receiver),
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callback_(NULL),
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val0_(val0),
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val1_(val1),
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val2_(val2),
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val3_(val3) {
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const QMetaObject* meta_receiver = receiver->metaObject();
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QByteArray normalised_slot = QMetaObject::normalizedSignature(slot + 1);
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const int index = meta_receiver->indexOfSlot(normalised_slot.constData());
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Q_ASSERT(index != -1);
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slot_ = meta_receiver->method(index);
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Connect(sender, signal);
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}
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Closure::Closure(QObject* sender,
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const char* signal,
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std::tr1::function<void()> callback)
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: callback_(callback) {
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Connect(sender, signal);
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}
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Closure::~Closure() {
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}
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void Closure::Connect(QObject* sender, const char* signal) {
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bool success = connect(sender, signal, SLOT(Invoked()));
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Q_ASSERT(success);
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success = connect(sender, SIGNAL(destroyed()), SLOT(Cleanup()));
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Q_ASSERT(success);
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Q_UNUSED(success);
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}
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void Closure::Invoked() {
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if (callback_) {
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callback_();
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} else {
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slot_.invoke(
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parent(),
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val0_ ? val0_->arg() : QGenericArgument(),
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val1_ ? val1_->arg() : QGenericArgument(),
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val2_ ? val2_->arg() : QGenericArgument(),
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val3_ ? val3_->arg() : QGenericArgument());
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}
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deleteLater();
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}
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void Closure::Cleanup() {
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disconnect();
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deleteLater();
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}
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} // namespace _detail
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_detail::Closure* NewClosure(
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QObject* sender, const char* signal,
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QObject* receiver, const char* slot) {
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return new _detail::Closure(sender, signal, receiver, slot);
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}
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void DoAfter(QObject* receiver, const char* slot, int msec) {
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QTimer::singleShot(msec, receiver, slot);
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}
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void DoInAMinuteOrSo(QObject* receiver, const char* slot) {
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int msec = (60 + (qrand() % 60)) * kMsecPerSec;
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DoAfter(receiver, slot, msec);
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}
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